This final rule revises HUD's public and assisted housing program regulations to implement the upfront income verification (UIV) process and to require the use of HUD's Enterprise Income Verification (EIV) system by public housing agencies (PHAs), and multifamily housing owners and management agents (O/As), when verifying the employment and income of program participants at the time of all reexaminations or recertifications. This final rule will ensure that deficiencies in public and assisted housing rental determinations are identified and cured. This final rule is consistent with HUD's comprehensive strategy under the Rental Housing Integrity Improvement Project (RHIIP) initiative to reduce the number and dollar amount of errors in HUD's rental assistance programs. This final rule follows publication of a June 19, 2007, proposed rule, and makes certain changes at this final rule stage in response to public comment and further consideration of certain issues by HUD.